Engine valve



Dec. 13,1927. 1,652,380

' O. O. STORLE ENGINE VALVE Filed Jan. 9, 1924 4 Sheets-Sheet lINVENTOR.

6: 51116 I BY WWM WM (W,

A TTORNEYS.

O. STORLE Dec. 13, 192

ENGINE vALvE 4 Sheets-Sh 2 Filed 1924 INVENTOR. 2224 A TTORNEY.

Dec. 13, 1927; 1,652,380

0. O. STORLE ENGINE VALVE Filed Jan. 9, 1924 4 Sheets-Sheet 3(6Z@%2$TORS A TTORNEYJI Dec. 13, 1927. 1,652,380.

' O. O. STORLE ENGINE VALVE Filed Jan. 9, 1924 4 Sheets-Sheet 4 I N VE NTOR Y Q4 izv B v ATTORNEYS.

Patented Dec. 13, 1927.

s oLE o. s'roRLn, onrAooiuA, WASHINGTON.

ENGINE VAL Application 'fiIed January 9, 1924. I "Serial No. 685,086. I

This invention relates more particularly to rotary valves for internalcombustion engines. The main objects of the invention are'to avoid noisein the operation of the valve and valve gear; to s mplify the'construct-ion and reduce the cost oi the valve operating mechanism, andmake it more durable and less liable to get out-'ofadp stment; toprovide for the adjustment of the valve to take up wearer play and tomaintain a tight working lit between it and its seats; to prevent thedepositot carbon on the working faces of the valve and its seats; toprovide for continuous automatic lubrica-j tion and prevent overheatingot' the valve; and generally to improve the construction and operationof valves of this class;

It consists in the construction, arrange ment and combination of partsas hereinafter particularly described and pointed out intheclaims In theaccompanying drawing like characters designate the, same parts in theseveral figures.

Figure 1 is a plan view of a portion of a multi-cylinder internalcombustion engine equipped with valves embodying the inven-i tionyFig. 2is a side elevation of a portion of the engine: Fig 3 is an enlarged'axial section on the line 33, Figs. 1 and 2, of one of the valves andassociated parts of the engine; Fig. 1 is a cross-section on the line4c4, Fig. 3, of two of the valves; Fig. 5 is.

a similar section on the line 5-5, Fig; 3,0f

one of the valves ;Fig. 6 is an'enlarged plan view of a portion of amulti-cylinder' engine provided with valves of a modified construction;Fig. 7 is across section on the line 7-7, Fig. 8;Fig. 8 is an axialsectionof one of the valves on the line 88, Figs. 6, 7 and 9; and Fig. 9is a cross section on the line 99, Fig. 8. p 7

Referring to Figs. 1 to 5 inclusive, 1 designates the cylinder block ofa multi-cylinder internal combustion engine such as anautomobile'engine, 2 designates valve cases, which may be cast as shown,integrally with the upper cylinder head 3, 4 designates the exhaustmanifold, and 5 the inlet manifold of the engine, 6 designates-amanifold water outlet connection from the valve cases,

which communicate with the water jackets of the engine cylinders, to theupper part of the radiator (not amwnyiand 7 desig nates "the'returnwater connection between the lower part of the'radiator and the lowerpartof theengine block 1, in which water 7 jackets '8 are castintegrally-with cylinders 9;

The rotary valve headswith which the en- 3 glue is equipped, areprovided at their upper or outer ends with gears 11, which as shown, areadapted to be driven fromithe' crank shaft of the engine by pinions 12on shafts 13 connected with the crank shaft by bevel gears (not shown);or otherwise, one of said pinions and shafts being shown for driving apair of intergearedvalvesat one end of the engine,

Referringto Figs, 3, Q4 and5, in connection with Figs. 1'and'2,eachvalve case is formed or provided-with outer-and inner walls 15 and16, and an intervening annular valve chamberhavmg reversely" ncllned I(301110341 valve seats converging towards thei lower or inner end of thechamber which is closed, the larger outer end ofIthe chamber being open.1

The valve case is formed through both walls'15 and 16 and theintervening valve chamber, with inlet or admission ports ,18, and outletor exhaust ports 19', with which the intake manifoldfj and theexhaust-'manifold 1 communicate respectively.

A rotary annular valve head 21, having reversely tapered or inclinedconicalfaces, is fitted in-the valve chamber to the conical seats on theopposing faces of the walls 15 and 16, and is formedwith aport22 adapted to register alternately with the admission and exhaust: ports '18'and19 of the valve case asthe valve head is rot'ated or turned. I r s Theinner wall 16 of the valve case is extended at its upper or outer endand threada ed, and isp'rovided with an adjusting nut 24 and a lock nut25 threaded thereon. The

nut 24, with 'an interposed washer 26 of suit able wearing material,bears against the upper or ou'ter'end of th'evalve; head'21 and" holdsit in place in the valve chamber, affording means for taking up wear andplay and maintaining aclo'se. working fit between the opposing valvefaces and itsseats, The

gear 11, by which the valve head is rotated or turned, may be formed asshown, integrally'ivith the upper-or outer and'larger bersfit)areconnected with the cylinder jack: ets 8 b v passages 36, formedin thebaseiof end of the valve head, or may be separately formed and fastenedthereto.

The lower or inner end of the valve head terminates short of the loweror inner end t the valve chamber, to allow adjustment of the valve headfor taking up wear and play. The space within the inner wall 16 ot? thevalve case is divided by a partition 28, into a combustion or firingchamber 29 and a ooling water chamber 30. The tiring chamber 29, whichis closedat. its uppcror outer end and provided with a threaded opening32 for aspark plug, and is open at its mneror lower end into the ado1n1ng C11? ;..;ine cylinder 9, communicates with the inlet and exhaustports 18 and 19. The cooling chamber 80, which is preferably, of greatercireui'nterential extent than the firingchamber. 29, is closed at itslower. or inner end,

and connected at its upper or outer open end with the water header ormanifold 6, which is, fastened tothe several valve cases by bolts 34-,each passing through the head eror manifold and threaded :in a crosspiece a'rin chamber 30, as showniinlcigs. 3] and 5, gaskets being,interposed between the branches of the header or manifold andthe valvecases 2. Atftheir inner endsthechamthevalve cases orhead 3 of thecylinders For-continuous and effect ve lubrieation of thovailveseachvalve case isiprovided adqacentthe lowerandnpper ends otthe valvei vhamhers with oil inlet or supply and out? let connections 37 and 38,communicating through. passagesor openings in the outer wall 15, withthe valve cha1nber,. as shown in Fig.3. t

The inner wall 16 of the valve case is formed with a. longitudinal oil,channel llll; opening at its endsainto the valve chamber and tunneledunder the adjacent valveseat to pointsbeyondithe pat hot, the port 22 inthe valve head, to prevent oil from flowing into said port as it passessaid channel on each revolution of the valve head, The lower or innerend of the channel 39 extends below the. lower or inner end of the valvehead,

and opens into the valve chamber in con. stant con'nnnnication with theoil supply connection 37. i 1

Annular. oil groovesAlandAQ are formed in the outer andinner"facesrespectively of the valvehead 21, and are connected with withthe outlet connection 38- through the lower or inner end of the valvechamber, the channel 89, the groove 42, openings l3 and the groove 41.The inner and outer working faces of the valve head 21 are formedrespectively each with one or more longitudinal oil grooves 45 and 46.Each groove 4:5, terminating short of the annular groove 42 and of thelower or inner endof the valve face in which it is formed, arran e'd toregister at the ends with the open ones of the, channel 39 oneachrevolution of the valve head, and

each groove 46 connects atits upper or outer endwith, the annular groovell, and at its lower or inner end, which terminates short of the loweror inner end of the valve head, is arrangtalto register at everyrevolutionof the valve head, with a short blind groove, at? inthe valveseat on the inner side ojtrthe t outer wall 15 leadingirom theconnectiontill.

InFig. l, spark plugs 4:9 are shown, and B5 .inFig. 3,11 portion of apiston 51 shown,, in the upper end of thecylinder 9.

Inthe operation ot'these a-alves,,the valve heads 21. being rotated inthe directions indi, cated by. arrows on Fig. l by their 60111160 9tions with the crank shaft of the engine through the gears 11 andpinionsl2, the port 22 in eachivalve headis brought-into registeralternately witlr the admission and exhaust ports 18 and 19 of thevalvecaselonee to each revolution of the valve head and every tworevolutions of the crank sha:tt,.i.t-, the engine is a tour-cycleengine. t t

In the first; quarter revolution of each valve head after passing theexhaust port It),

the port 22 passes the inlet portltl on the downward or inward suction.SiL'OkOuOIli the piston 49, andthe cylinder is charged with gas, or. anexplosive mixture of oil-vaporandair.

. t t During the following rpiarter revolution and the upward or ontwartstroke of the pisi ton the charge is compressed, during the next quarterrevolution at the beginning of the next. downward or inward stroke ofthe pisten, the compressed charge is ignited; lex-i ploded by the sparkplug :31, extendii g into the upper or outer end of theliringClltllllber- 29, and during the last quarterrevolution at the beginningof the nextnpward or} out ard stroke of the piston, the port 22 isbroughtinto registerwiththc exhaust port, 19, and the spent 'ascstaredischarged fronn the cylinder and tiring chamber through the exhaustmanifold 4, according to the: usual functioning of a four-cycle.internal combustion engine. r itheach revolution o the valvehead each ofthe grooves 45 and 46 in its mater and inner faces, is brought intocoimnunication 12s with the oil supply connection 87 and tilled withoil, which carried around with the valve head and distributed over itsconical face/s and seats, keeping them thoroughly lubricated. .130

vWhile the engine is working, water circu'-' lated through'and cooled inthe radiator in the usual manner, passes through the con nection7'intoand through the water jackets 8 of the cylinders and thence through thepassages; 36 into the chambers 30, where" it comes in contactwithextended areas of the inner walls 16 of thefvalve cases,therebypre-' venting t-he'overheating of the valves and burning ordetrimentally a ifecting the oil with which they are lubricated. Fromthe chambersthe-heated or warmed water returns throughtheheader ormanifold connect-ion 6 to the radiator to here-cooled.

The conical 'workingfaices of the valve heads 21 turning on theirconical valve seats, tend-to maintain a tight or close working ,fittherewith, prevent the deposit of carbon thereon, and cause the valve'heads to operate easily, smoothly and noiselessly.

Referring to F'gs. 6 to 9 inclusive,showingvalves of a modifiedconstruction, the

outer walls l5'of the valve cases are surrounded by a water jacket 30',which may be cast-integrally therewith and communicates -with the wateracket 8of the engine cyl1n ders 9. The combustion or firing chambers 29occupy the entire space within the inner walls 16 of the case. In otherrespects the said outer wall, a partition separating said valve"caseinto a combustion chamber and a water cooling chamber, 1nlet andoutlet passages for said water cooling chamber, an

annular valve provided at the upper endthereof with a gearand fittedbetween said outer and inner walls for rotation with -re spect thereto,and a nut threaded upon the extended portion of said inner wall anddirectly engaging and holding said valve'in operative position betweensaid "inner and outer walls, said walls being provided with registeringinlet and outlet ports for said combustion chamber, said valve beingadapted to open and closersaid ports upon rotary movement" thereof. V

'2. In combination with a cylinder provided with a water jacket, of avalve case secured thereto and comprising an outer walland an inner wallextending beyond said outer wa1l, a partition separating said as definedin the following valve case into a combustion chamber and a watercooling chamber, a passage con nectmg the lower end of sa dwatercoollngi chamber to said waterjacket, an outlet con nection for sa1dwater cooling chamber secured to sald' valve case, an annular valveprovided at the upper end'thereof with a gear and fitted between saidouter and inner walls for rotation'with respect thereto, and a nutthreaded uponthe extended portion of said inner wall and directlyengaging and holding "said valve inoperative position be tween saidinner and outer walls, said walls being provided with registering inletand: outlet ports for said combustion chamber,

said valve being adapted to open and-close said ports upon rotarymovement thereof.

3. In combination with a plurality of cylinders providedwith waterjackets, of valve cases secured to said cylinders and comprising'outerwalls and inner walls extending beyondsaid outer walls, partitionsseparating said valve cases into'combustion chambers andwatercoolingchambers, passages connecting the lower ends of said watercooling chambers to said water jackets,

water coolingchambers at the upper ends thereof, annular valves]provided at' the up-' per ends thereof with gears and fitted betweensaid outer and inner walls for rotation with respect thereto, means fordriving said gears, and nuts threaded upon the. extended portions ofsaid inner walls and di rectly engaging and holding said valves in theirrespective operative posit ons between a water manifold secured to saidvalve Y cases and providing outlet passages for said r said inner andouter walls,said walls being provided with registering inlet and outletports forsaidcombustion chambers, said valves being adaptedto open andclose said port-s 'upon'rotation thereof by said means.

4:. In anjinternal combustion engine, a cylinder provided with a valvecasing having a combustion chamber communicatingwith said cylinder andcomprising outer and inner spaced walls, said inner wall extendingbeyond said outer wall and varying in crosssection at a uniform ratefrom the lower end thereof to the extended end'of the same,

an annular valve member fittedbetween said walls and'provided at itsupper end with gear teeth extending outwardly over the upper end of saidouter wall, the inner an nular face of said valve-member varyingincross-section at a uniform rate from end-toend thereofand contactingthroughout its entire length with the adjacent face of said inner wall,the extended end of said inner wall being threaded to substantially theupper end of said valve member, and a nut threaded upon said threadedportion of the extended end of said inner walland directly bearing uponthe'upper end of said valve membe'r'to hold the latter inoperaa magmative positionubetween said walls, said walls andisaidrvalve member beingprovided with ports arranged to register upon rotary lllOVG;

ment of said niember'to provide inlet; and A exhaust ports for saidcylinder.

; In anengine valve the combination of a valve case'having inner, andouter-walls forming an annular valve chamber closed at the inner, endand open at the outer end 101" zndihaving reversely inclined coaxialconi cal valve seats, a'firing chamber within the inner wall open at itsinner end for C0111? munication with an engine; icy] inder, and 1 inet;and exhaust ports through both walls I -.o the llliligs chamber; arotary annular 3o annular valve had fitted in the, valve chan'iher. tosaid seats and having a port arrangedto registeralternately.with theinlet and exhaust ports of the case, the valve head being provided; withlongitudinal oil grooves-inns inner; and outer working faces, and oilsupply andoutlet connections Wlllh the case adapted to register with andre:

plenish the oil grooves in the valve head.

at each revolution thereof; a a T. In, an engine valvethe combination ofa case havinginner and outer walls, for1nmg an annular valve chamberWltlLtJOttXlftl valve seats on OpLIOSItOiSItlQS thercoit and a tiringchamber within the inner wall and having inlet and exhaustportsthroughboth walls andthe nitervening alive chamber to the tiring chainber oilsupply and outlet;

connections adjacent the ends of the valve chamber; anda longitudinaloil channel. in constant 1101i.Il'llllllttltlfill; with said oil sup plyand outlet connectionsand tunneled under the adjacent valve seat topoints beyond the path of the portiin the valve head; and a rotaryannular valve head fitted in the valve chamberto the; seats on oppositesides thereof and having at port arranged to register alternatelywithflthc in? let and exhaust ports ofthe case and con: neeted annularand longitudinal oil grooves 00 in its inner and: outer working faces,one longitudinal oil groove being connected at one end withthe annulargroove inthesame face of the valve head and arranged to register at theother end with the oil supply an, cOlllWtltlOll ofthe ease and the otherlongi;

tudinal roove: being arranged to register at its en swith thetunneledchannel inithe case onieachtrevolution of the valve head 8. Inan internal coinliustiondengine, a? cylinder provided with a valvecasing hav; ing a combustion chamber communicating with said cylinderand coniprisingvan outer wall and an innen wall spaced therefrom andrigidly connected therewith, the upper; end a of said inner wall beingthreaded and extending upwardly beyond the upper end (it said outerwall, an annularvalvei fitted;

loosely between said walls for rotarymoves,

ment with respectthereto, theupper end of; said, valve extendingupwardly beyond the upper end oil said onter walland beingrpro l videdwith a gear rigidly connected, therewith and extending outwardly overtheslat tor, and a nut threaded upon said extended, end of saidinnerwall andvarrangedtoubear directly and downwardly uponwthe upper endof said valve whereby the latter, is held; in operative position betweensaid; walls, said walls and said valvebeing provided, with portsarranged to register upon rotary movement of said valve to provide inleta d exhaust ports. for saidcylinder.

9. In an internal combustion engine, acylinder providedwvith a valvevcasin hav ing a combustion chambercommunicating with said cylinder andcomprising anouteu wall and an inner wall spacedtherefrom,

the upper end of said inner wvall being threaded and extending upwardlybeyond the upper endof said outer, wall, an annular; valvefitted looselybetween said walls for rotary movementwith respect, thereto, the

upper end otsaid valve extending upward] beyond the upper end of saidouter wall and being provided with a gear extending outwardly over thelatter, and a nut threaded upon said extended. end of said inner walland arranged tobeardirectly. and downwardly upon the upper end of said,valve whereby the latter is held in operative position between saidwalls, said walls and said valve being provided with ports arranged toregister upon rotary movement of said valve to provide inlet and exhaustports for said cylinder, said upijvardlyi-leiza tended end of said innerwallibeing adapted to receiveand support a spark plug in operativerelation with respect to said combustion chamber. i

1 0. In an internal combustion engine, a cylinder provided with a valvecasing havmg inner and outer walls and a partition,-

separating said easing into a, combustion chamber communicating withsaidcylinder and a water-cooling chamber, the upper,

ends of said partition and said inner wall providing an opening forreceiving aspark plug, a valve loosely fitted between said walls formovement with respect theretog said walls. and said valve beingprovided.

with ports'arranged to register upon movement of said valve to provideinlet and out let portsoforsaid cylinder, and means for moving saidvalve. r

11'. Incan internal combustionengme, .a Cylinder provided with a valvecasing having a partition separating the latter into manifold Lfittedover and communicating;

with theupper end of saidiwater-cooling chamber, a bolt. passing throughsaid mani i fold and being threaded into said cross piece whereby theformer is held in assembled ,relation with respect to said water-coollngchamber, a valve associated with said casing,-

said valve and said casing being provided with openings arranged to reister upon actuation of said valve to provi e inlet and outlet ports forsaid cylinder, and means for actuating said valve.

12. In an enginevalve, a casing having inner and outer walls spaced toform a valve chamber and a combustion chamber within said inner wall, anannular valve loosely fitted between said walls for rotary movement withrespect thereto, said Walls and said valve being provided with openingsarranged to register upon rotary movement of said valve to provide inletand outlet ports for said combustion chamber, means for rotating saidvalve, an oil supply passage communicating with the lower end of saidvalve chamber at a point below. the.

lower end of said valve, an oil outlet passage communicating with theupper'end of said valve chamber, said valve being provided with a grooveon each side thereof having their respective ends arranged tocommunicate with said inlet and outlet passages during each revolutionof said valve whereby oil is caused to flow around the lower end of thelatter and thence upwardly along said grooves between said valve andsaid walls and out through said outlet passage.

13. In an engine valve, a casing having inner and outer walls spaced toform a valve chamber and a combustion chamber within said inner wall, anannular valve loosely fitted between said walls for rotary movement withrespect thereto, said walls and said valve being provided with openingsarranged to register upon rotary movement of said valve to provide inletand outlet ports for said combustion chamber, means for rotating saidvalve, an oil chamber formed in one ofsaid walls and having itsrespective ends communicating with the adjacent face of said valve atpoints beyondtheopening in said valve, an oil supply passagecommunieating with one end of said oil chamber, and an oil outletpassage communicating with the otherendofsaidoil chamber, said face ofsaid valve being provided with-a groove arranged to communicate with therespective ends of said oil chamber .during each revolution ofsaid-valx' e whereby oil is caused to flow along said groove between.said wall and said face of said valve.

14. In an engine valve, a casing having inner and outer. .walls spacedtoform a valve chamber andsacombustion" chamber within said inner wall, anannular valve loosely fit.-

ted between said walls for rotary movement with respect thereto, saidwalls and said valve being provided =-witl1 openings at ranged toregister upon rotary movement of said valv'efto provide inlet andoutlet-ports for said combustion chamber, means for rotating said valve,said valve beingprovided on each side-thereof with grooves extendingfrom thelower end of said valve to the upper end thereof, a passagethrough said valve connecting the upper ends of said grooves,

and an oil supply passage arranged to communicate with the lower ends ofsaid grooves and an oil outlet passage arranged to communicate with theupper ends of said grooves during each revolution of said valve wherebyoil is caused to flowupwardly along said grooves on each side of saidvalve and out through said outlet passage.

15. In an engine valve, a casing having inner and outer walls spaced toform avalve chamber and a combustion chamber within said inner wall, anannular valve loosely fitted between said walls for rotary movement.with' respect thereto, said walls and said valve being provided withopenings arranged to register upon rotary movement of said valve toprovide inlet and out-let ports for said combustion chamber, means forrotating said valve, outer and inner-annular oil grooves formedrespectively in; the outer and inner faces of said valve at the upperend thereof, a passage in said valve connecting'said annular grooves, agroove formed in the outer face of said valve and communicating withsaid outer annular oil groove, a groove formed in the inner face of saidvalve, said inner wall being providedwith an oil chamber in constantcommunication with said inner annular oil groove and arranged to connectthe latter to the groove in the inner face of said valve during eachrevolution of the latter, an oil supply passage arranged to communicatewith said grooves in the outer and inner faces of said valve during eachrevolution of the latter, said oil supply passage being in constantcommunication with said oil chamber, and an oil outlet passagein'constant communication with said outer annular oil groove whereby inB i a emma inner and outer "WilllSSIJflCG'd to :form a valve chamber anda combustion chamber within said inner Wall; an annular vahe looselyfitted between said wallsfor rotary movement with respect thereto saidwalls and said valve being provided with openings arranged to registerupon rotary movement of said'valve to provide inlet and outlet ports forsaid combustion ohambeiymeans for rotating said valve, and an oil supplypassage and *an oiloutlet passage communicating with :said valve chamber the inner and outer faces of said valve and the respectivead-'acent faces of said innerand outer Walls eing prmided withcommunicating grooves and passages 1 arranged to maintain constant acommunication between said oil supply and outlet passages and to permitoil toflow from said oil supply passage along the pering wahje {chambeipa valve loosely fitted between said walls for movement withrespeotthereto, means adjustably.

tively connected to the inner nvall a "(iirectly and rpositivelyengaging the "valveto hold theval ve in :proper ad uStment, said valveand *said walls having cooperating poi-ts.

In testimony whereof I-hereto afiix lmy signature. 1

